First overview block: Viola Glabella, Violaceae, Stream violet, Yellow Wood Violet, Pioneer Violet
General: Puberulent perennial from widely spreading, scaly, fleshy rhizomes, the flowering stems 5-30 cm. tall, leafless the lower two-thirds.
Leaves: Leaf blades ovate-cordate to reniform, abruptly pointed, the basal leaves with petioles 10-20 cm. long; stipules membranous, ovate to obovate, 5-10 mm. long, entire.
Flowers: Flowers 8-14 mm. long, borne chiefly on the upper part of the stem, on peduncles about as long as the leaves; spur very short; petals clear yellow, the lower 3 with purple penciling, the lateral pair well bearded; style head copiously bearded.
Fruit: Fruit a 3-valved capsule, ovary superior, placentation parietal, seeds brown.